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<!DOCTYPE html> <html> <head> <meta charset="UTF-8" /> <title>本教程 React 实例</title> <script src="http://static.w3big.com/assets/react/react-0.14.7/build/react.js"></script> <script src="http://static.w3big.com/assets/react/react-0.14.7/build/react-dom.js"></script> <script src="http://static.w3big.com/assets/react/browser.min.js"></script> </head> <body> <div id="example"></div> <script type="text/babel"> var Hello = React.createClass({ getInitialState: function () { return { opacity: 1.0 }; }, componentDidMount: function () { this.timer = setInterval(function () { var opacity = this.state.opacity; opacity -= .05; if (opacity < 0.1) { opacity = 1.0; } this.setState({ opacity: opacity }); }.bind(this), 100); }, render: function () { return ( <div style={{opacity: this.state.opacity}}> Hello {this.props.name} </div> ); } }); ReactDOM.render( <Hello name="world"/>, document.getElementById('example') ); </script> </body> </html>